problem installing steam

[major]

i am getting this message when i tippe in: ./steam -command update -game "Counter-Strike Source" -dir .

hosted-by:~/srcds# ./steam -command update -game "Counter-Strike Source" -dir .
Checking bootstrapper version ...

AssertPreCondition
Name: NonNullFilePath
Expr: !sFile.empty()
Line: 334
File: ../../../Common/Misc/FileUtil.cpp
Aborted


i have delitted som file before, can it be that. and how do i delited thos files?

thx for the help

[major]

i solve this problem.
it was a hiden map that i had to deleted